2min chapter

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Richard Rhodes - Making of Atomic Bomb, AI, WW2, Oppenheimer, & Abolishing Nukes

Dwarkesh Podcast

CHAPTER

The Problem With U-235 Refinement

If you get two subcritical masses of uranium together, you wouldn't have the full bomb because it would start to tear itself apart without a tamper. So Alvarez's model would be a few kilotons, but that's a lot. He claimed that one of the reasons why we talked so much about Los Alamos is that at the time, the government didn't want other countries to know that if you refine uranium, you've got it.

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